Is it possible to convert atoms to molecules?

Question

If I have 5.0 X 10^21 atoms - how can I convert this to molecules and then to moles?

Convert 5.0 X 10^21 atoms of C6H12C6 (glucose) into molecules....

THANK YOU!! :P

Answer 1

I will use the example of oxygen. If you have 5.0x10^21 atoms of oxygen, the you have 2.5x10^21 molocules of o2. It depends on the element. You take the number of atoms the divide by the number of those atoms in the molocule. 5.2x10^21 /2 atoms in the molocule= 2.5x10^21 molocules of o2. To convert to moles, you divide the number of molocules you have by Avagadro's number: 6.022x10^23. So, 2.5x10^21 molocules of o2 divided by 6.022x10^23 =4.15144x10^-3 moles of o2.
I hope this was helpful, I just took CHM103 last semester and I haven't forgot any of it yet.

Answer 2

You have that many atoms of what?

If it something like O2 or N2, then the number of molecules that you have is 1/2 the number of atoms. To convert that to moles of molecules, just divide by avogadro's number: 6.02 X 10^23.

Answer 3

I expect you mean(in your additional) that you have 5.0 X10^20 molecules to convert into atoms;and so on.

Answer 4

You might be confused by the words atom and molecule here.

Glucose (C6H12O6 not C6H12C6) is a molecule, made up from atoms of carbon (C), hydrogen (H) and oxygen (O).